Question

me ayudan resolver esta ecuasiones cuadraticas
x²+9x+18=40

Answer 1

¡Hola!.

Resolver.

$x^{2} + 9x + 18 = 40$

$x^{2} + 9x + 18 - 40 = 0$

$x^{2} + 9x - 22 = 0$
 
$x$      $+11$
 
$x$    $-2$

$(x + 11) (x - 2) = 0$

Tenemos dos soluciones.

$x + 11 = 0$

$x = - 11$

$=========================================$

$x - 2 = 0$

$x = 2$

Sol: -11 y 2